7. I worked as a Freight Brakeman / Conductor for 17 years.

The RRs back then did NOT want passenger trains on their tracks. AFAIK, they still don't. The only reason they tolerate Amtrak is because the US Government gives them so much money to allow trackage rights. Frankly, we freight crews hated Amtrak back then. Because oft times we had to wait for Amtrak, and that delayed us getting over the road, and either getting home, or getting to the terminal at the other end of the road, and getting our rest. The one who really hated Amtrak were Maintenance of Way people who could only come out, work for a few hours, then stop, and clear Amtrak one direction, then repeat the process for Amtrak the other direction.

In the US we have High-Speed passenger rail traffic in the only places the population density is high enough, which is the Northeast Corridor with multiple main lines, and the West Coast. If we want widespread High-Speed passenger rail in this country, then we will have to spend the money to build dedicated High-Speed passenger only rails lines and all that entails. That means no rail crossing at grade. No chances of any car / truck and train ever colliding. Ever. Bridges / overpasses everywhere train and surface roads meet. How much will that cost to build per mile? I have seen estimates from $20 million a mile to $2 billion a mile.

And think of the legal bullshit that would entail. Everyone would have both hands out thinking they won the Lottery because the government was going to buy their land for rails lines. Then there would be the NIMBYs who would try to stop they whole thing because it ruined their quality of life or their view, or some other excuse. Then the environmentalists would get into the act claiming animals would be driven to extinction or the local ecology would be irreparably damaged, or some other excuse.

We can't even build wind turbines to help us become energy self sufficient without someone whining and crying about THEIR view being spoiled, or birds being slaughtered, or the desert ecology being destroyed, or someone suffering from some nervous complaints because of noise from wind turbines, and you think we're going to get widespread High Speed Passenger rail in this country?